User's Manual

Chassis Systems Control
Leonberg
20 December 2021
Page 8 of 15
Model
Document
Dept.
FR5CUEC
User Manual ITA
XC-DA/ESR1
5.2 Features and mechanical design
The high level of integration of the sensor and control unit functionalities, along with the
compact design and space-saving planar antenna, mean that the system can be easily
integrated into vehicles. The FR5CUEC can be concealed in the bumper or fitted in the radiator
grill of the vehicle, with minimal impact on the design or cooling air flow.
The FR5CUEC is equipped with a function for self-calibration. Once the sensor has been fitted
in the vehicle, it automatically searches for reference points during the first journey, and then
uses these reference points to calculate the sensor axis deviation from the dynamic driving
axis. The system software then compensates for this deviation. While the system is “learning”
this reference information, certain functions may be deactivated or restricted. In order to
achieve maximum performance on delivery, the system must be calibrated during the final
stages of series production using a defined reference point. Time-consuming and expensive
mechanical sensor calibration processes are not required.
Thanks to the robust sensor design, which does not have any mechanical moving parts and
features a high tolerance for vibration, the FR5CUEC can be used across all vehicle segments.
Radom heating is available as an option for the FR5CUEC – guaranteeing high sensor
availability, even in poor weather conditions, such as snow and ice.
5.3 Areas of a pp li c at i on
The FR5CUEC is the foundation on which a range o f sa f e t y and driver assistance functions
can be implemented. The FR5CUEC can be used for the following
functions:
Predictive emergency braking system
With the FR5CUEC, vehicle manufacturers can meet the requirements for the automatic
emergency braking systems “AEB City” and Interurban” as outlined in the Euro NCAP
assessment scheme.
With its predictive emergency braking system, Bosch is helping to prevent rear-end collisions
and reduce the severity of accidents. The system becomes active as soon as the vehicle is
started, and supports the driver at all speeds – both day and night.
If the predictive emergency braking system determines that the distance to the preceding
vehicle is becoming critical short at a vehicle speed above 5km/h, it prepares the braking
system for potential emergency braking. If the driver does not react to the hazardous situation,
the system warns the driver via an audible and/or visual signal, followed by a short but
noticeable brake jerk.
The system then initiates partial braking to reduce the speed and give the driver valuable time
to react. As soon as the driver presses the brake pedal, the system provides braking support.
To do this, the system continuously calculates the degree of vehicle deceleration required to